Any analysis of Bitcoin increment without a cogent reason and source is not reliable, bitcoin can get increase if it have much demand, someone can make the correction of bitcoin by investing money and with that bitcoin can be increase in the market. So i don't believe on exaggeration, assumptions and prediction, because i believe on my personal theory, in bitcoin
But, even if the predictors came up with their own source I think there's still no guarantee's that it will came into reality. The demand in btc is still there and will continue the longer we go so $69k is pretty possible but I don't think it will take us 4 years to get there. A correction is when the price falls by some percent. It's not easy for some average guy to correct the price of btc but that job is being done by the whales due to their power.
We know when the prediction is exaggerated so we won't likely believe on it but it's possible for us to believe in some predictions which are realistic because our predictions are also similar or close to that.
Theirs no prediction of Bitcoin that have fifty five percent (%55) assured, because everyone is exaggerating, so you can wake from sleep now and the price of Bitcoin changes, so it's possible that the price acceleration is not dependable by us, or our prediction, because from my understanding of cryptocurrency and especially bitcoin price, we don't have to make over emphasis of the price. If the demand of bitcoins is higher by the supply, it will surprise you that the price can reach five hundred ($500) within short space of time.